I hve an astronomy test tomorrow and I am not sure how to do half life.
How would I answer a question like this?
You are analyzing Moon rocks that contain small amounts of uranium-238, which decays into lead with a half-life of about 4.5 billion years.
In a rock from the lunar highlands, you determine that 60% of the original uranium-238 remains, while the other 40% has decayed into lead. How old is the rock?
How would I answer a question like this?
You are analyzing Moon rocks that contain small amounts of uranium-238, which decays into lead with a half-life of about 4.5 billion years.
In a rock from the lunar highlands, you determine that 60% of the original uranium-238 remains, while the other 40% has decayed into lead. How old is the rock?